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SubjectRe: [PATCH 3/4] ide: don't disable interrupts during kmap_atomic()
From: Sebastian Andrzej Siewior <>
Date: Fri, 4 May 2018 16:24:45 +0200

> ide_pio_bytes() disables interrupts around kmap_atomic(). This is a
> leftover from the old kmap_atomic() implementation which relied on fixed
> mapping slots, so the caller had to make sure that the same slot could not
> be reused from an interrupting context.
> kmap_atomic() was changed to dynamic slots long ago and commit 1ec9c5ddc17a
> ("include/linux/highmem.h: remove the second argument of k[un]map_atomic()")
> removed the slot assignements, but the callers were not checked for now
> redundant interrupt disabling.
> Remove the conditional interrupt disable.
> Signed-off-by: Sebastian Andrzej Siewior <>

Acked-by: David S. Miller <>

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